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https://issues.apache.org/jira/browse/CXF-4867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592080#comment-13592080
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Ulrich Kaiser commented on CXF-4867:
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Hi Aki,
thank you for your quick response!
And sorry for forgetting to attach some configuration files - I attached them
now (obviously, you will have to adapt the referenced names).
Furthermore, I produced a heap dump with the command line 'java.exe -Xmx400m
-XX:+HeapDumpOnOutOfMemoryError -jar TextCXF.jar contact 2013-02-25' (I set the
maximum heap space to 400 MB so that the dump would not get too big). In this
case the program aborted while reading 3399 entities for the first time.
Please tell me if there is still something missing.
Thanks again
Ulrich
> Extensive memory usage when reading from CRM 2011
> -------------------------------------------------
>
> Key: CXF-4867
> URL: https://issues.apache.org/jira/browse/CXF-4867
> Project: CXF
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.7.3
> Environment: Windows 7 Enterprise SP1, Java 1.6.0_37 (32 bit)
> Reporter: Ulrich Kaiser
> Attachments: Memory2.png, Prompt.png, TestCXF.zip
>
>
> Hi there!
> I have written a test program that reads entities from a Microsoft Dynamics
> CRM 2011 using CXF 2.7.3. The program was compiled and run as a runnable jar
> with Java 1.6.0_37 (32 bit).
> Now, when I run the program (in my case with the command line 'java.exe
> -Xmx1600m -jar TestCXF.jar contact 2013-02-25') and look at the memory usage,
> I do not understand why it needs so much memory (about 1.6 GB) for only 4 *
> 3099 records, even though the records are minimal (no attributes). The
> consequence is that when I have to read more records (e. g. the target CRM
> has more than 50'000 contacts), I will get an OutOfMemoryError.
> Furthermore, the test program finishes after four loops and releases its
> memory. The actual productive program on the other hand is meant to run for
> hours, so it would be very helpful to know how to free the memory, but
> calling System.gc() or re-connecting to the CRM did not work.
> Do you perhaps have an explanation for this behavior and can you give me a
> hint how to lower the memory usage?
> I have attached two screen-shots and a zip file with the runnable jar and the
> main source files. If you need any further information please do not hesitate
> to send a mail.
> Thank you and kind regards
> Ulrich
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